Viritin widgetset CDN lets you as a Vaadin developer to focus on your application development
and forget Vaadin widgetset (GWT) compilations altogether. It is primarily targeted
for development time use, but you may also freely use it in production applications on your own risk.

Viritin widgetset CDN is a free hosted service, maintained by a bunch of Vaadin enthusiasts and
not an official product of Vaadin Ltd.